Reservoir, Overflow, and Expansion Tanks

Direct-fit kits

Mishimoto direct-fit expansion tanks are designed for a bolt-in install.

Multiple colors and finishes

Mishimoto reservoir, overflow, and expansion tanks are available in a variety of colors and finishes to spice up your engine bay.

If you take the cooling of your vehicle seriously we couldn’t recommend an upgraded expansion or reservoir tank more. Our selection of reservoir, overflow, and expansion tanks come in multiple different colors and finishes so you won’t only be upgrading the performance under the hood but also the aesthetic. Mishimoto direct fit expansion tanks are designed for an easy bolt-in installation, while our universal sizing options make it easy to find a reservoir tank to fit under your hood. Our aluminum reservoir tanks are constructed with durability in mind and our lifetime warranty ensures that even if you are in an accident Mishimoto has you covered. If you are still looking for more upgrades within your cooling system take a look at our intercooler kits, transmission coolers, and radiator fans because at Mishimoto you always know we have the highest quality cooling products under your hood.

Aluminum construction

Mishimoto overflow, reservoir, and expansion tanks are 100% aluminum and TIG-welded where applicable for increased durability.

Lifetime Warranty

All Mishimoto products carry a lifetime warranty including accident protection.

Click to Mishimoto Lifetime Warranty

Reservoir, Overflow, and Expansion Tanks

Direct-fit kits

Multiple colors and finishes